Sökning: "Anders Björn"
Visar resultat 6 - 10 av 63 avhandlingar innehållade orden Anders Björn.
6. Newtonian Spaces Based on Quasi-Banach Function Lattices
Sammanfattning : The traditional first-order analysis in Euclidean spaces relies on the Sobolev spaces W1,p(Ω), where Ω ⊂ Rn is open and p ∈ [1, ∞].The Sobolev norm is then defined as the sum of Lp norms of a function and its distributional gradient.We generalize the notion of Sobolev spaces in two different ways. LÄS MER
7. Sobolev-Type Spaces : Properties of Newtonian Functions Based on Quasi-Banach Function Lattices in Metric Spaces
Sammanfattning : This thesis consists of four papers and focuses on function spaces related to first-order analysis in abstract metric measure spaces. The classical (i.e., Sobolev) theory in Euclidean spaces makes use of summability of distributional gradients, whose definition depends on the linear structure of Rn. LÄS MER
8. Boundary Value Problems for Nonlinear Elliptic Equations in Divergence Form
Sammanfattning : The thesis consists of three papers focussing on the study of nonlinear elliptic partial differential equations in a nonempty open subset Ω of the n-dimensional Euclidean space Rn. We study the existence and uniqueness of the solutions, as well as their behaviour near the boundary of Ω. LÄS MER
9. Removable singularities for Hardy spaces of analytic functions
Sammanfattning : Let Ω ⊂ C be a non-empty open connected set and O < p min {1, p} then K is not removable. Several theorems about removability of sets lying on rectifiable curves and also conditions for removability of some planar self-similar Cantor sets are given... LÄS MER
10. Diskurser om informationssamhället : Analys av några offentliga texter
Sammanfattning : The interest of this thesis is how the information society will be expressed in some public texts. The focus is especially on how such concepts as learning, knowledge, identity and IT as a tool will be constructed discursively. In a social constructionist meaning the future will be created through communication and interaction between people. LÄS MER